sql_singleDirectory structure or permissions need to be repaired. Database tables need updating.
Your modelCourse in the 'courses' directory is out of date or missing. Please update it from webwork/webwork2/courses.dist directory before upgrading the other courses. Cannot find MathAchievements directory /opt/webwork/courses/modelCourse/templates/achievements nor MathAchievements picture directory /opt/webwork/courses/modelCourse/html/achievements
how do I update database tales?
Also, from the command line, when I run git pull origin, I got the following error message
fatal: Not a git repository (or any of the parent directories): .git
What did I miss/